<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <div id="outer">
        <div id = "inner">
            This first line of the DIV is indented by 505pixels
        </div>
        <p>
            Tis paragraph ix 2ooopx wide, and the first line of the paragraph
        </p>
    </div>
</body>
<style>
    div#outer {
        width: 500px;
    }

    div#inner {
        text-indent: 10%;
    }

    p {
        width: 200px
    }
</style>

</html>